How Generational Differences Affect Purchase Behavior $.$

What are three interaction terms that you should add to the following model $($the last three variables in the model are dummy variables, the reference category is Silent Generation$)?$

$($Purchase intentions$)=\backslash$beta $0+\backslash$beta $1($Location$)+\backslash$beta $2($Payment Security$)+\backslash$beta $3($Speed of Checkout$)+\backslash$beta $4($Transparency of Promotions$)+\backslash$beta $5($Baby Boomer$)+\backslash$beta $6($Millennial$)+\backslash$beta $7($Gen Xer$)+\backslash$epsi

Explain each answer with one or two sentences.